Question

Encontre o x (x) . (+643) . (-75) - (+84) . [(+67).(+74)]​

Answer 1

(x) . (+643) . (-75) -  ( +84 ) . [ ( +67 ) . ( +74 ) ]​ =

  x .   ( - 48225 )   -  ( + 84 ) .     4958    =

  x .   ( - 48225 )   -           416472  =

- 48225x    =  + 416472

-x = 416472 / 48225

-x = 8,636 (-1)

x =  - 8,636